US 12,115,778 B2
Printing apparatus
Midori Yasuda, Kawasaki (JP); Yuki Kamio, Kawasaki (JP); Masashi Kamada, Kawasaki (JP); Masato Eiyama, Yokohama (JP); Yuki Igarashi, Tokyo (JP); Masashi Negishi, Kawasaki (JP); Ryoya Shinjo, Kawasaki (JP); Ryo Kobayashi, Kawasaki (JP); and Tomohiro Suzuki, Kawasaki (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jul. 5, 2023, as Appl. No. 18/218,453.
Application 16/988,310 is a division of application No. 15/912,592, filed on Mar. 6, 2018, granted, now 10,766,279, issued on Sep. 8, 2020.
Application 18/218,453 is a continuation of application No. 16/988,310, filed on Aug. 7, 2020, granted, now 11,718,110.
Claims priority of application No. 2017-046433 (JP), filed on Mar. 10, 2017.
Prior Publication US 2023/0347666 A1, Nov. 2, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B41J 11/00 (2006.01); B41J 15/04 (2006.01); B41J 15/16 (2006.01); B65H 16/10 (2006.01); B65H 20/02 (2006.01); B65H 23/04 (2006.01); B65H 23/188 (2006.01)
CPC B41J 11/0095 (2013.01) [B41J 11/0045 (2013.01); B41J 15/046 (2013.01); B41J 15/16 (2013.01); B65H 16/106 (2013.01); B65H 20/02 (2013.01); B65H 23/044 (2013.01); B65H 23/1888 (2013.01); B65H 2301/522 (2013.01); B65H 2403/942 (2013.01); B65H 2701/1311 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A printing apparatus comprising:
a first sheet supplying unit which includes a first driving unit configured to rotate a first roll sheet, on which a sheet is wound, in a first direction for supplying the sheet and in a second direction opposite to the first direction, and a detection unit configured to detect the sheet supplied from the first roll sheet;
a second sheet supplying unit which includes a second driving unit configured to rotate a second roll sheet, on which a sheet is wound, in the first direction and in the second direction; and
a print unit configured to print on a sheet supplied from the first sheet supplying unit or the second sheet supplying unit,
wherein, in a case in which the detection unit cannot detect a leading end of a sheet after the first driving unit rotates the first roll sheet in the second direction more than a predetermined number of times, the first driving unit stops a rotation of the first roll sheet.